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Def Leppard
The heavy metal band Def Leppard was formed in Sheffield, England in 1977; founding members included lead singer Joe Elliot (b. 1 August 1959), bassist Rick Savage (b. 2 December 1960) and guitarist Pete Willis. Drummer Rick Allen (b. 1 November 1963) and guitarist Steve Clark (b. 23 April 1960) joined the band shortly thereafter. Their debut album On Through the Night (1980) was a hit and Def Leppard joined groups like AC/DC and Ted Nugent among the heavy hitters of arena rock. Their 1983 al More »
Born: 1977 (Sheffield, England)

en.wikipedia.org/wiki/Unified_atomic_mass_unit

The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass). One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol.

whatis.techtarget.com/definition/atomic-mass-unit-AMU-or-amu

An atomic mass unit (symbolized AMU or amu) is defined as precisely 1/12 the mass ... The mass of an atom in AMU is roughly equal to the sum of the number of  ...

www.dictionary.com/browse/atomic-mass-unit

Atomic mass unit definition, Also called dalton. a unit of mass, equal to 1/12 ( 0.0833) the mass of the carbon-12 atom and used to express the mass of atomic  ...

www.thoughtco.com/definition-of-atomic-mass-unit-amu-604366

Jul 3, 2017 ... An atomic mass unit or amu is a physical constant equal to one twelfth of the mass of an unbound atom of carbon-12. It is a unit of mass used to ...

study.com/academy/lesson/atomic-mass-unit-amu-definition-standard-conversion.html

According to the Royal Society of Chemistry, one atomic mass unit is equal to 1.66 x 10^-27 kg. Where did this number come from? While the history of atomic ...

www.khanacademy.org/tag/atomic-mass-unit

Science » Chemistry » Atoms, compounds, and ions » Introduction to the atom. Looks like it's plus 1.0034 atomic mass units. ... It's roughly equal to an atomic ...

socratic.org/questions/what-is-1-atomic-mass-unit-equal-to

Dec 7, 2015 ... 1 atomic mass unit (a.m.u.) is the mass of a proton or a neutron ... say that the molar mass of a hydrogen is equal to 1gmol and this is because:.

www.aqua-calc.com/what-is/weight/atomic-mass-unit

The atomic mass unit (u) definition and its relation to other weight measurement units. Online unit conversions and unit conversion tables.

www.innovateus.net/science/what-atomic-mass-unit

The unified atomic mass unit (u) or dalton ( Da) is a unit that is used for indicating mass on an atomic or molecular scale. One Da is approximately equal to the ...